samsara_get_driver_hos

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description needed to disclose behavioral traits such as read-only nature, authentication requirements, rate limits, or pagination behavior. It only says 'Get' (implying read) and mentions compliance, but does not clarify if the operation is safe, what data volume to expect, or any side effects. This is insufficient for a tool with potentially large response sizes.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is very concise at two sentences. The first sentence is the core purpose; the second adds minimal value ('Essential for compliance tracking'). No information is bloated, but the conciseness comes at the cost of omitting useful details.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given three required parameters, no annotations, and no output schema, the description is incomplete. It does not specify output structure (e.g., list of logs vs. summary), time zone handling, maximum date range, or any prerequisites. The agent is left to guess important invocation details.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema description coverage is 67% (startTime and endTime have descriptions, driverId does not). The tool description adds no parameter-level details beyond what the schema provides, and fails to explain the missing driverId parameter (e.g., format, lookup method). It does not compensate for the coverage gap.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action ('Get') and the resource ('Hours of Service logs for a driver'), and adds context about compliance tracking. It is specific enough to distinguish from siblings like samsara_get_driver or samsara_get_driver_safety_events, though it does not explicitly differentiate them.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided on when to use this tool versus alternatives (e.g., samsara_get_driver for basic info, samsara_get_driver_safety_events for safety events). There are no when-to-use or when-not-to-use instructions, leaving the agent to infer context from the name alone.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.